Home / 20,526.81-30,815.73-20,432.04

Finding the Fourth Proportional to 20,526.81, 30,815.73 and 20,432.04

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Solution

The fourth proportional to 20,526.81, 30,815.73 and 20,432.04 is: 30,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.81 : 30,815.73 = 20,432.04 : x
  2. Step 2: Convert to fraction form
    20,526.81/30,815.73 = 20,432.04/x
  3. Step 3: Cross multiply
    20,526.81x = 30,815.73 × 20,432.04
  4. Step 4: Simplify right side
    20,526.81x = 629,628,227.99
  5. Step 5: Solve for x
    x = 629,628,227.99/20,526.81
  6. Step 6: Final answer
    x = 30,673.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.